While stargazing, I noticed a "star" that should not be there, and while I stared at it, it started to move slowly. Noticed it in the Bootes patch of sky, it moved slowly through Ursa Major. Looked like a reddish star, near the color of Antares perhaps. It did not blink, flash, or change color. Visual magnitude, approximately 3.5. It seemed to speed up just a little while it traveled between Arcturus and eta-UM. Slowed down in Ursa Major, and I lost it to the sky. I'm estimating very high altitude or low Earth orbit. The satellites I'm used to seeing move faster than what I am reporting here.